\begin{tikzpicture}
    \begin{scope}
        \tkzDefPoints{0/0/B, 2/0/C, 2/3/A}
        \tkzDrawPolygon(A,B,C)
        \tkzMarkRightAngle(A,C,B)
        \tkzMarkSegment(A,B)
        \tkzMarkSegment[mark=||](A,C)
        \tkzLabelPoints[above](A)
        \tkzLabelPoints[below](B,C)
    \end{scope}


    \begin{scope}[xshift=3.0cm]
        \tkzDefPoints{0/0/B', 2/0/C, 2/3/A, 4/0/B}
        \tkzDrawPolygon(A,B,C)
        \tkzDrawPolygon(A,B',C)
        \tkzMarkRightAngle(A,C,B)
        \tkzMarkRightAngle(A,C,B')
        \tkzMarkSegments(A,B  A,B')
        \tkzMarkSegment[mark=||](A,C)
        \tkzLabelPoint[above,xshift=1em](A){$A'(A)$}
        \tkzLabelPoints[below](B,B')
        \tkzLabelPoint[below,xshift=1em](C){$C'(C)$}
    \end{scope}
\end{tikzpicture}

